Perhaps you should try some spelling variations:
nham nang » phap nang, cam nang, nhan dang
hieu van » hieu va, thien van, lieu va
kha nang » phap nang, ky nang, ki nang
tinh ve » trinh ve, tinh ven, dinh ve
va tinh » may tinh
cam duc » cam xuc, cao duc, pham duc
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va
lai hoi » dai hoi, lai hoa, lai roi
ve cua » le cua, de cua, te cua

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: vu bach ((nham nang) OR (kha nang)) lai hoi. ((hieu ve) or (hieu van)) cam duc va tinh ve cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu bach ((nham nang) OR (kha nang)) lai hoi. ((hieu ve) OR (hieu van)) cam duc va tinh ve cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu bach ((nham nang) OR (kha nang)) lai hoi. ((hieu ve) or (hieu van)) cam duc va tinh ve cua tre".
• Adding a wildcard symbol may retrieve word variants: vu bach ((nham nang) OR (kha nang)) lai hoi. ((hieu ve) or (hieu van)) cam duc va tinh ve cua tre*.